Telegraph fire burns more than 80,000 acres to become 10th largest in Arizona history

The wildfire, believed to be human-caused, has been fueled by dry, windy conditions and high temperatures

Firefighters in Arizona worked through the night battling the Telegraph fire, a wildfire that started east of Phoenix on Friday and has burned more than 80,800 acres (33,000 hectares).

Officials said on Wednesday the fire was 21% contained, but straddled two counties, had forced thousands of evacuations in rural towns, and closed almost every major highway out of the area.